Parameter descriptions
The behavior of the PID controller is set with:
− Proportional part
Amplification 444
− Integral part
Integral Time 445
− Differential part
Derivative Time 446
Reference percentage channel is shown (simplified). See chapter 7.5.2 "Reference percentage chan-
nel".
Application examples
Pressure control
The pressure in a process is kept at a constant level by means of a pres-
sure sensor.
Flow rate control
The flow rate in a process is kept at a constant level by means of a flow
sensor.
Temperature control
The temperature is kept at a constant level by controlling a fan by means
of a thermostat.
Via dataset changeover via control contacts, the PID controller can be adjusted to different operating
points.
476,494 Reference percentage source, PID desired set value input
The desired set value source of the control can be selected via parameter
Reference Percentage
Source 1
476 or Reference Percentage Source 2 494. The values of both parameters are added. See
chapter 7.5.2 "Reference percentage channel".
222
Operating Instructions
Agile
06/2013 Control functions
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